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devel / comp.graphics.apps.gnuplot / Newb question

SubjectAuthor
* Newb questionDavid Partridge
`* Re: Newb questionOlaf Schultz
 `* Re: Newb questionDavid Partridge
  `- Re: Newb questionJörg Buchholz

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Newb question

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Subject: Newb question
From: david.pa...@perdrix.co.uk (David Partridge)
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 by: David Partridge - Tue, 7 Sep 2021 11:04 UTC

I tried to find this out from the "friendly manual", but failed - too overwhelmed by information.

I want GNUPlot to process a CSV whose 1st record provides "metadata" about the remainder of the data in the file (test conditions to be added as annotations to the plot).

Is this easy to do? If so a pointer to a working example or tutorial for this would be hugely helpful.

Thanks
David

Re: Newb question

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From: o.schu...@enhydralutris.de (Olaf Schultz)
Newsgroups: comp.graphics.apps.gnuplot
Subject: Re: Newb question
Date: Tue, 7 Sep 2021 13:51:36 +0200
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 by: Olaf Schultz - Tue, 7 Sep 2021 11:51 UTC

On 9/7/21 13:04, David Partridge wrote:
> I tried to find this out from the "friendly manual", but failed - too overwhelmed by information.
>
> I want GNUPlot to process a CSV whose 1st record provides "metadata" about the remainder of the data in the file (test conditions to be added as annotations to the plot).
>
> Is this easy to do? If so a pointer to a working example or tutorial for this would be hugely helpful.
>
> Thanks
> David
>

Moin, perhaps

try it with "with labels"

http://gnuplot.sourceforge.net/demo/

espacially

http://gnuplot.sourceforge.net/demo/datastrings.html

is a good hint for you.

Greetings,

Olaf

Re: Newb question

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Subject: Re: Newb question
From: david.pa...@perdrix.co.uk (David Partridge)
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 by: David Partridge - Wed, 8 Sep 2021 08:11 UTC

On Tuesday, September 7, 2021 at 12:51:40 PM UTC+1, Olaf Schultz wrote:
> On 9/7/21 13:04, David Partridge wrote:
> > I tried to find this out from the "friendly manual", but failed - too overwhelmed by information.
> >
> > I want GNUPlot to process a CSV whose 1st record provides "metadata" about the remainder of the data in the file (test conditions to be added as annotations to the plot).
> >
> > Is this easy to do? If so a pointer to a working example or tutorial for this would be hugely helpful.
> >
> > Thanks
> > David
> >
> Moin, perhaps
>
> try it with "with labels"
>
> http://gnuplot.sourceforge.net/demo/
>
> espacially
>
> http://gnuplot.sourceforge.net/demo/datastrings.html
>
> is a good hint for you.
>
> Greetings,
>
> Olaf
Not really as there wasn't any explanation of what was happening. Lets try this with a different approach. What if the first record is a comment line and therefore csv metadata.

Is there a way to get GNUPlot to display that comment line as a caption?

D.

Re: Newb question

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From: bookwood...@freenet.de (Jörg Buchholz)
Newsgroups: comp.graphics.apps.gnuplot
Subject: Re: Newb question
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 by: Jörg Buchholz - Thu, 9 Sep 2021 07:51 UTC

On 08.09.2021 10:11, David Partridge wrote:
> On Tuesday, September 7, 2021 at 12:51:40 PM UTC+1, Olaf Schultz wrote:
>> On 9/7/21 13:04, David Partridge wrote:
>>> I tried to find this out from the "friendly manual", but failed - too overwhelmed by information.
>>>
>>> I want GNUPlot to process a CSV whose 1st record provides "metadata" about the remainder of the data in the file (test conditions to be added as annotations to the plot).
>>>
>>> Is this easy to do? If so a pointer to a working example or tutorial for this would be hugely helpful.
>>>
>>> Thanks
>>> David
>>>
>> Moin, perhaps
>>
>> try it with "with labels"
>>
>> http://gnuplot.sourceforge.net/demo/
>>
>> espacially
>>
>> http://gnuplot.sourceforge.net/demo/datastrings.html
>>
>> is a good hint for you.
>>
>> Greetings,
>>
>> Olaf
> Not really as there wasn't any explanation of what was happening. Lets try this with a different approach. What if the first record is a comment line and therefore csv metadata.
>
> Is there a way to get GNUPlot to display that comment line as a caption?
>
> D.
>
Hi David

as a example, if your datafile is something like this and named "data.dat":

This is the title
1 2
1 3
1 4
1 5
2 1

Than you can do the following and you have a plot with "This is the
title" as the title.

set datafile separator ";"
set term unknow
plot 'data.dat' every ::0::0 using (textVar=stringcolumn(1),0)
set title textVar
set datafile separator whitespace
set term qt
plot 'data.dat' skip 1 u 1:2

Jörg

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